Persanura lencarana, Smolis, Adrian & Kuznetsova, Nataliya, 2018

Smolis, Adrian & Kuznetsova, Nataliya, 2018, The genera Albanura Deharveng, 1982 and Persanura Mayvan et al., 2015 are no longer monotypic: description of new species from the Caucasus (Collembola, Neanuridae, Neanurinae, Neanurini), ZooKeys 737, pp. 1-12 : 3-6

Persanura lencarana sp. n. Figs 14-28, Table 4, 5, 6

Type material.

Holotype: female on slide, Azerbaijan, Lankaran District, surroundings of Dashdatuk, forest, under stones, 30.I.1985, leg. Expedition of Moscow Pedagogical State University (MSPU).

Etymology.

The name “lencarana” refers to a region where the new species was found.

Diagnosis.

Habitus similar to that of Persanura hyrcanica . Dorsal tubercles present and well developed. 3+3 pigmented eyes. Buccal cone short and relatively wide, labral sclerifications nonogival. Chaetotaxy of central area of head complete, chaetae A, B, C, D, E and O present. Tubercles Dl and (L+So) on head with six and ten chaetae respectively. Tubercles Di on Th. with two chaetae. Tubercles De on Th. II and III with five and six chaetae respectively. Tubercles De on Abd. I–III with four chaetae. Tubercles L on Abd. III and IV with five and eight chaetae respectively. Tubercles Di on Abd. V with three chaetae.

Description.

General. Body length of holotype (without antennae): 2.15 mm. Colour of the body bluish. 3+3 small black eyes, in a typical arrangement for the genus (Fig. 14).

Chaetal morphology. Dorsal ordinary chaetae of three types: long macrochaetae, short macrochaetae and mesochaetae. Long macrochaetae relatively thin, slightly arc-like or straight, narrowly sheathed, feebly serrated, apically rounded or pointed (Figs 14-17, 27). Macrochaetae Mc morphologically similar to long macrochaetae, but shorter. Mesochaetae similar to ventral chaetae, thin, smooth and pointed. S-chaetae of tergites thin, smooth and short, notably shorter than nearby macrochaetae (Figs 14, 16, 17, 28).

Antennae. Typical of the genus. Dorsal chaetotaxy of Ant. III–IV as in Fig. 25 and Table 5. S-chaetae of Ant. IV relatively long and moderately thickened (Fig. 25). Apical vesicle well developed, trilobed (Figs 23, 24). Ventral chaetotaxy of Ant. III–IV as Table 5, sgv long and s-shaped (Fig. 22).

Mouthparts. Buccal cone short and wide, with labral sclerifications nonogival. Labral chaetotaxy: 4/2, 4 (Fig. 26). Labium with four basal, three distal and four lateral chaetae, papillae x absent. Maxilla styliform, mandible strong with two basal and four apical teeth (Figs 18, 19).

Dorsal chaetotaxy and tubercles. Chaetotaxy of head as in Figs 14, 15 and Table 4. Tubercle Cl with chaetae D. Chaetotaxy of thorax and abdomen as in Figs 14, 16, 17 and Table 6. Thorax and abdomen without free chaetae (Figs 14, 16). On Abd. I–III, the line of chaetae De1-chaeta s perpendicular to the dorsomedian line. Cryptopygy poorly developed, Abd. VI visible from above.

Ventral chaetotaxy. On head, groups Vea, Vem and Vep with 4, 3, 4 chaetae respectively (Fig. 15). Group Vi on head with 6 chaetae. On Abd. IV, furca rudimentary with 8 microchaetae devoid of visible chaetopores (Fig. 20). On Abd. V, chaetae Vl and L’ present.

Legs. Chaetotaxy of legs as in Table 6. Claw without internal tooth. On tibiotarsus, chaeta M present and chaetae B4 and B5 relatively short and pointed, chaeta A6 similarly in length to chaeta B4 (Fig. 21).

Remarks.

Persanura lencarana sp. n. most visibly differs from P. hyrcanica in the presence of a complete chaetotaxy in the central area of the head (reduced chaetae C, E and O absent in hyrcanica ), the presence of two chaetae Di on Th. I (one chaeta in hyrcanica ), the presence of three chaetae Di on Th. II–III (two chaetae in hyrcanica ), the presence of four and five ordinary chaetae De on Th. II and III, respectively (two chaetae in hyrcanica ), the presence of three ordinary chaetae De on Abd. I–III (two chaetae in hyrcanica ), and the presence of three chaetae Di on the penultimate abdominal segment (two chaetae in hyrcanica ). In addition, they differ in the number of labral chaetae (4/2, 4 in lencarana ; 0/0, 4 in hyrcanica ), the presence/absence of chaetae Dl3 on the head (present in lencarana ; absent in hyrcanica ), the number of chaetae L of Abd. IV (8 in lencarana ; 3-5 in hyrcanica ), and the presence/absence of microchaetae on furca rudimentary (present in lencarana ; absent in hyrcanica ).